Copper mining MSU Department of Geography Michigan State .
You know what happens when things go to Washington. . Mining started in 1844 by the sinking of two shafts near Copper Harbor, but both were unsuccessful. .. For example, gold panners will pan their way upstream to the "Mother Lode". . carnelian, agate, found along the beaches of the copper counties and Isle Royale.
copper mining in north america Alaska Division of Geological .
Production: Natural Resources Committee, Washington, D. C., March 1936, p. 56. 7 Barbour ... tons of ore was 186,000,000 pounds of copper, $1,410,000 in gold,. 2 .. 17 James, H. T., Britannia Beach Map Area 13 0: Oanada Geol. Survey.Get Price